GQ columnist Alan Richman traveled 23,750 miles and consumed more than 150,000 calories to come up with his list of "The 20 Hamburgers You Must Eat Before You Die." Here are his picks for the best burgers America has to offer.

Hamburger Sandwich Louis' Lunch New Haven, CT

Our Famous Burger Sidetrack Bar and Grill Ypsilanti, MI

Hamburger Poag Mahone's Carvery and Ale House Chicago, IL

Double Bacon Deluxe with Cheese Red Mill Burgers Seattle, WA

Hamburger & Fries Burger Joint San Francisco, CA

Build Your Own Burger The Counter Santa Monica, CA

Hamburger J.G. Melon New York, NY

Cheeseburger White Manna Hackensack, NJ

Hamburger Bobcat Bite Santa Fe, NM

Grilled Bistro Burger Bistro Don Giovanni Napa, CA

Number Five Keller's Drive-in Dallas, TX

Cheeseburger Burger Joint, Le Parker Meridien Hotel New York, NY

Hamburger Miller's Bar Dearborn, MI

Buckhorn Burger Buckhorn San Antonio, NM

California Burger Houston's Santa Monica, CA

Kobe Sliders Barclay Prime Philadelphia, PA

Rouge Burger Rouge Philadelphia, PA

Not Just a Burger Spiced Pear Restaurant at the Chanler Hotel Newport, RI

Luger Burger Peter Luger Steak House Brooklyn, NY

Sirloin Burger Le Tub Hollywood, FL

(Get Alan's full article at http://men.style.com/gq/features/full?id=content_2526)